Results 51 to 60 of about 126,743 (307)

Characterization of the complete chloroplast genome of the woody sow-thistle, Sonchus leptocephalus (Asteraceae) endemic to the Canary Islands

open access: yesMitochondrial DNA. Part B. Resources, 2019
Sonchus leptocephalus belongs to a core member of the woody Sonchus alliance endemic to the Macaronesian Islands in the Atlantic Ocean. The alliance has been subject to intensive investigations of adaptive radiation on oceanic islands.
Hye-Been Kim   +4 more
doaj   +1 more source

Multiple ITS Copies Reveal Extensive Hybridization within Rheum (Polygonaceae), a Genus That Has Undergone Rapid Radiation [PDF]

open access: yes, 2014
Background: During adaptive radiation events, characters can arise multiple times due to parallel evolution, but transfer of traits through hybridization provides an alternative explanation for the same character appearing in apparently non-sister ...
Ailan Wang   +27 more
core   +1 more source

Phylogeny of Hawaiian Melicope (Rutaceae): RAD-seq Resolves Species Relationships and Reveals Ancient Introgression

open access: yesFrontiers in Plant Science, 2019
Hawaiian Melicope are one of the major adaptive radiations of the Hawaiian Islands comprising 54 endemic species. The lineage is monophyletic with an estimated crown age predating the rise of the current high islands.
Claudia Paetzold   +6 more
doaj   +1 more source

Testing the adaptive radiation hypothesis for the lemurs of Madagascar [PDF]

open access: yesRoyal Society Open Science, 2017
Lemurs, the diverse, endemic primates of Madagascar, are thought to represent a classic example of adaptive radiation. Based on the most complete phylogeny of living and extinct lemurs yet assembled, I tested predictions of adaptive radiation theory by ...
James P. Herrera
doaj   +1 more source

Rapid radiations underlie most of the known diversity of life

open access: yesFrontiers in Ecology and Evolution
Rapid radiations, including adaptive radiations, are of considerable interest to evolutionary biologists, in large part because they are thought to underlie much of the species diversity of life.
John J. Wiens, Daniel S. Moen
doaj   +1 more source

“And if you gaze long into an abyss, the abyss gazes also into thee”: four morphs of Arctic charr adapting to a depth gradient in Lake Tinnsjøen

open access: yesEvolutionary Applications, 2020
The origin of species is a central topic in biology. Ecological speciation might be a driver in adaptive radiation, providing a framework for understanding mechanisms, level, and rate of diversification. The Arctic charr Salvelinus alpinus L.
Kjartan Østbye   +5 more
doaj   +1 more source

Trophic Diversification Out of Ancestral Specialization: An Example from a Radiating African Cyprinid Fish (Genus Garra)

open access: yesDiversity, 2022
Trophic resource partitioning is one of the main ecological mechanisms of adaptive radiation. The Garra is a highly specialized periphyton feeder that has widened jaws equipped with a horny cutting scraper.
Aleksandra S. Komarova   +2 more
doaj   +1 more source

Failure patterns of locoregional recurrence after reducing target volumes in patients with nasopharyngeal carcinoma receiving adaptive replanning during intensity-modulated radiotherapy: a single-center experience in China

open access: yes, 2023
Background: Previous researches have demonstrated that adaptive replanning during intensity-modulated radiation therapy (IMRT) could enhance the prognosis of patients with nasopharyngeal carcinoma (NPC).
Zhou, Xiate   +9 more
core   +1 more source

Ecological significance of newly recorded halophilic Pharyngomonas kirbyi from two Korean solar salterns

open access: yesJournal of Ecology and Environment
Background: Hypersaline environments (> 40 practical salinity units [PSU]) represent some of the most extreme conditions on Earth, supporting a variety of halophilic and halotolerant bacteria, archaea, and protists.
Hyeon Been Lee, Jong Soo Park
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

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